Friction device for shuttles.



.L JOHQUS,

PRICTION DEVISE .FR SHUTTLE AHLIOATON TILEE JAN.

Patented Nov. 18, i913.

JOHN JOHNSTON, 0F WONSOCKET, RHQLE FRICTIN DEVICE FOR SHUTTLES.

Specification of Letters Yatent.

intenten Nov. 18, i913.

Application filed January 6, 1913. Serial No. M029?.

Too whom t may Concern.:

Be it known that I, JOHN JOHNSTON, n Citizen of the United States, residing :it

'll'oonsocke in the county of Providence 'applied to or removed from the shuttle..

Further theinvention ninos to provide holder of simple und eeononiienl row no tion which Cnn he easily heut to Secure the rietion media thereto.

ln the drnwings-Figure i n 'fragmentnry perspective view of :i nhuttie equipped with the pre-ent invention, Fig. it iS n. fruguientnry vertitnl seetionul view. Y n detnehed perspeetivo view of the friction device. Fig. l is n plain view of the hlnnlt from which the holder is Aoi'ined, :ind Yigg'. 5 is n phin view of the friction element. proper.

The invention liroudly eoneits oi :i metallic holder :ind t'rietion nniteriuh which lotier is Hernred to the holder hy houding the hitter so :is to rhiinp the. friction tnnerifd hetween the heut portions of the holder, :ind to this end u nieiul 'ilzink of suhstuntinlly rectangular i'orni, :is Shown in f. l, of the. druwingrn i5 provided with :i eentrzil longjitudinnl niet, l. The hhink il. then lient. over upf'n itself on the linen le-l of Fig. l., wherehy it will he .eeen tlnit two U-shoped parts 3 :ire provided` whirh pu :ire eonheeled :il their free upper ond: .XS depleted in Fi;` 5 ol the drnwii w n l :e of felt or other Suitzihle lizeilel'ixil is provided with n rtntrnl eut 7, through whiffh the thread T passes. The piero of felt -1A is plneed on onel of the pfir I, :ind the, other part l is then lient to engage the opposite `ide ot' the pieve of felll 4, whereby it will he seen that theI felt is clamped by sind between the two ports Il, the felt. extending nei-oso the spur-e, hetween the legs of the, U-shnped port 3, :ind since the out. 5 of the piero of felt et opensl outwardly ut the tree upper ends of Fig. I 3 is lthe legs of the iishojped parte 3, it will ire seen that. the thread can he introduced into the. out. 5 hv merely moving the tlread downwardiy imo said ont. The 'throat of the shuttle formed with Confronting vertienl cutout portions i to provide guide for the opposite of the holder, Ithe holder having its lower, end placed in the guide (i and move-:i down thereinto. An openingA A'etends through the bottom of the shuttle und l upper end of the Opening terminator 'ment to bottom of the holder, so that iitnoie. instrument can he. introdneed in. opening '7 to drive the friction ont oi" its guideways, whereuiiion :i ne in device may then he pint-ed into po ion, the piece of felt Y ren'ioved from the diolodged friction devire, sind nen1 il v oi' felt. substituted, whereupon the iin nitty he replaced in the guide-wn From the irietien dem it siii he obvious that the l. ly', quickly and since the holder clamping, the t. imiter is not only itself fiietii'fne pieve of felt. rigidly Seenrefi i... tion no other meer, telt to the lian-iw* vimini fs nen :i terri lii i en :i ,-w

.\ friction eerie-- aired to seeine'the tied :ny invention, I

*to eeoure by Let- 'or formed. of n olanlc of en "oily rectangular contour whieh hns n .Single tientrnl longitudinal Slot spzseed fron" the ends :ind Sides of the lzilnnlc. said hlnni: oei lient. transversely of its eerder to forni n of similar U-shaped ports whirl". hitter :are connected to each other :it iheir upper ends and :i piece of teli: arranged l the legs 0f Suid U- sluipen parte ont ng entv therein which lendeI dewnwnrn im the upper end of the felt., The hase er* .1 'LJ-'shaped parts extendingI on opp Hite Tziees of the lower end of the felt.

ln textnnzriy whereof have signed my nnnie to thi 'intuition in the presence of two snl:.crihingr witnes=- -olden hut', in addi-- 

